ATS switch cabinet mainly realize automatic switching function between the two power supply ways, when one power supply way fails, it will automatically switch to the other. ATS switch cabinet is applied to the data room area as primary distribution,and is mainly to realize the mains- mains/mains generator/generator-generator automatic switching function,and supply dual switching power for the back-end air-conditioning, lighting,fire protection, UPS/HVDC/LVDC."